In the book of Genesis we find satan,
the source of all sin and sickness,
making his first attack on man with
words to Eve: "Yea, hath God said?"
Genesis 3:1

Satan attacked God's Word to question
if God's statement was for real.

As long as man rests on the Word of
God he cannot be moved. "They that
trust in the Lord are like Mount Zion,
which cannot be removed, but abideth
forever" Psalms 125:1